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Alliance vs Rockwell 40K Rear Diffs?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by rbrauns, Jun 6, 2020.

  1. Jun 6, 2020 #1
    rbrauns

    rbrauns Light Load Member

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    Dec 7, 2014
    0
    I couldn't find any posts about the rear differentials made by Alliance. Are they any good? I've got Rockwell 20-145 diffs on my truck now and they are supposed to be good so how do they compare?
     
    rbrauns, Jun 6, 2020
    rbrauns, Jun 6, 2020
    #1
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  3. Jun 6, 2020 #2
    swaan

    swaan Road Train Member

    2,942
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    Jul 12, 2009
    BC canada
    0
    Alliance is just a house brand of parts. Just like TRP is to paccar.
    Meritor are great rear ends. I like them better over eaton.
     
    swaan, Jun 6, 2020
    swaan, Jun 6, 2020
    #2
    Dino soar, wore out and AModelCat Thank this.
  4. Jun 6, 2020 #3
    AModelCat

    AModelCat Road Train Member

    29,139
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    Jul 7, 2015
    Canuckistan
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    Most guys I know would pass over any truck with Eaton rears. The newer ones seem better though.
     
    AModelCat, Jun 6, 2020
    AModelCat, Jun 6, 2020
    #3
    swaan and Dino soar Thank this.
  5. Jun 6, 2020 #4
    Shawn2130

    Shawn2130 Heavy Load Member

    894
    1,892
    Sep 20, 2015
    Ontario
    0
    I’m here for some lessons.

    What makes some rears better than others?

    The 2 trucks I drive have 46,000 Rockwell’s. Last truck I drove had 40,000 Meritors.

    I’m not sure what the other trucks in the company have.

    The dump trucks looks similar to the trucks I drive except for the old International dump truck which is different.

    The International is in front of the shop with a busted front diff at the moment.
    (Second time in less than a year, 2 different drivers) Drive shaft spins but truck doesn’t move even with power divider lock activated.
     
    Shawn2130, Jun 6, 2020
    Shawn2130, Jun 6, 2020
    #4
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